//Put this script OnClick or OnFailToOpen
void main()
{

object oPC = GetClickingObject();

if (!GetIsPC(oPC)) return;

if (GetItemPossessedBy(oPC, "gaurdianskey")!= OBJECT_INVALID)
   return;

effect eEffect;
eEffect = EffectDamage(3000, DAMAGE_TYPE_DIVINE, DAMAGE_POWER_ENERGY);

ApplyEffectToObject(DURATION_TYPE_INSTANT, eEffect, oPC);

object oTarget;
oTarget = oPC;

//Visual effects can't be applied to waypoints, so if it is a WP
//the VFX will be applied to the WP's location instead

int nInt;
nInt = GetObjectType(oTarget);

if (nInt != OBJECT_TYPE_WAYPOINT) ApplyEffectToObject(DURATION_TYPE_INSTANT, EffectVisualEffect(VFX_IMP_DESTRUCTION), oTarget);
else ApplyEffectAtLocation(DURATION_TYPE_INSTANT, EffectVisualEffect(VFX_IMP_DESTRUCTION), GetLocation(oTarget));

}